Machine for doffing lace fabrics



Z9 WITNESS w69 June 19, 1928.

F. G. HINSDALE MACHINE FOR DOFFING LACE FABRICS original Filed Jan. 12, 1925 2 Smm-sheet 2 BY Www,

A ITURNEYS Patented June 19, 1928.

UNITED FRANKGI'ILBJa'r HINSDA'LE, 'for NEW Yorin, ir. Y.

MACHINE :son 'DOFFI'NG LAGE FABRICS.

original application inea January 12,1923, seriaiNo. 612,176.Y Divided anathisfappiicatioii filed February '18, 192,6.

My invent-ion relatesto the manufact-ure of lace fabrics suc'hias lace curtains, and has for its objec'ttoprovideafnovel `and vsimple apparat-us oflsimple Construction and operation, whereby the doifing` of the lace fabric from the loom may be-eflic-iently carried out. The invention contemplates particularly the provision of a ivindinglapparatus of the indicated Etype which is portable andl capable of being easily shifted about. Other-objects v'of the invention Willappearfrom the description `hereinafter fand the :features of novelty -Will be 'pointed out in theclaims The ypresent'application vris '1a division of 'an- 'other application filed by me on January l2, 1923, Serial No. 612,17 6. Y l lReference-is to-b'e had'fto `the accompanyingdra\vin,:s, Which illustrate examples of the `invention Without defining its limits, and Ain which Figs. -1 and 2 illustrate the manner in which the lace Ileavvesthe loom; Fig. 3 illustrates diagrammatically the utilityof the doifing machine; Fig. "ifis a side elevation ofithe machine; Fig. 5 is a sectionalelevat-ion thereof; Fig. 6 vis 'an'end yieW of the improved apparat-us, and-Fig. `7 is ya horizontal section thereof.

In.' order thatthe invention maybe 'easily understood, reference Will be had'to the diagrammatic illustrations of Figs. l, 2 `and 3. The curtains may be Woven in the."u`stial manner lengthwise ofthe loom, -therebeing -at times,"as many asone hundred curtains vlocatedside by side in one -`piece` of 'iveavingg Wherever the 'Woven piece consists of tivovor more curtains they will, iaccording 4"to the present invention, be splitapart into individual curtains directly 'on the loom after @Weaving 'and prior to'being passed to 'the so-ca'lled 'batch-'roll of 'the loom'. say, the piece of Woven material a, Fig. 1, ,consisting of a plurality of individual curtains is vpassedover knives located-lup'on the 'breast-bc'am'21 of the loom in registry with the "lines of div-ision'between adjacent curtain Widths, orina manner to -split 1the lace into individual curtainsof aiiypredetermined Width. After liavine' been'split by the lknives 2O vinto individual Width of curtains c,1`ig. 2, the latterfare batched by being'passed' over suitably driven porcupinerolls22,I and Wound upon vtubes,23,veach of f which is rof suitable lengt-h to accommodate y one curt'ain'width andallof'which -ar'e'loo's'el-y mounted upon the vbatch-"roll beam 24 of That "is to serial im. 89,016.

'theloom-, as shown diagrammatically in y2. As-theneXt step, the'curt'ains are dolfed from the 'loom in the following manner: After the batch-'roll beam y24 has fbee'n shift- 4ed-to throw Athe rolls -of curtains t out of 'contact- With'V theporcupine-rolls 22, thefirst 'Width vof curtain a', for instance at theleftfhandj end-of Fig'. 2, is threaded around aten- -sio'nfbar 25, Fig. 3, and nipped 'between a doflinrg machine roll'26 and a spit-bar on Winding core 27 normally 'lying in surface Contact "there'with.- The` clotting-machine lroll 26 islth'e'n driven 'for' instance at a speed of approximately ltwo hundred yards per minute, vvhich'xcauses the lace from lthe firsty tube 23 to'be rolled uponlthe'spit-bar'27, /Which `gradually 'movesaway from lthe roll'26 in a predetermined path'asthe Winding' vrproceeds. As soonas the lac'e yhas 'been completely unwound from lthel `first tube 23, the next Width of curtain a on'the `second tube `223'is similarly 'Wound f'u'p'onth-e bar 27vand add'cdftwthelace previously wound thereon. This `operation is repeated until f the -loom is entirely 'vdoffed kof lace, l'eaving one llargejrolll ZJ of lace commonly termed a 'section and 'consisting "of the individual :lengths ytaken from the `plurality lof vsmall rolls A{pre'viouslyf-on ,the loom. This rlar-ge roll b'of lace ina-yithen be passed along to "any :predetern'iined "point to carry on the method 'of manufacturing the curtains'.

The aforesaid v'doiiing lofthe ylace is* convenientlya'nd efficiently carried out by means of the dofling machine `illustrated in Figs. 4, '5,6 and(7,"a'nld comprising a'horizon'tal sup- `porting frame 28,'p1'1'eferably mountedupon casters 29 vor their equivalent to render the machinepor-table"and p'ermit fit to be 'readily andeasily 'shiftedabout as required. The frame 28 is provided with uprights 30 spaced apart in 'registry Vwith ve'ach :other and fired in"'p'lace in'anycorivenient manner, as by bolts 81,Y said up'rights being slotted vlengthwise fas Vindicated lat esfinjFigs, 5 Aand '6. Bearings 33 "are mounted lupon said uprights 30, 'preferably by beingr Api'votally hung bet-vve'nbearing screws Set'lo'cated in coi'o'per'a'ting p'airs 'upon each fuprig'lit, as 'slio'w'n in 7,`a`ndeon`stitutejournals for the lshaft 35 loffa Vdrum l36,' which isjs'uitablyxed upon said shaft, for *instance 'by set 'screws or 5 the ilil'r/e. The drtimBG' may `Abefof anycon'venienty construction 'and preferably coin'pris'es lagging secured upon spiders 37, whereby the drum is mounted upon the shaft 35, the surface of the drum being preferably covered with a windingv of cord 38 or otherwise treated to increase the frictional effect there-V of. The drum 36 is rotatably driven in any convenient manner, as by means of an electric motor 39 carried upon the frame 28 and provided upon its shaft with a pinion 40 arranged in mesh with a gear 4l secured upon an intermediate shaft 42 suitably jour- `nalledin one of said uprights 30; the intermediate shaft v42 further carries'a pinion 43 which meshes with a gear 44 fixed upon the drum shaft 35 'and whereby power/is transmitted thereto. The dolfing machine now being described further includes means for maintaining the spit-bar, 27 and the roll of lace carried thereby in operative relation to the drum 36, provision being made to permit the bar 27 to move away from said drum as the'roll of lace gradually increases in di aineter. In the illustrated example the means referred to comprises duplicate latch members 46 provided with recesses 47 for the reception of the ends of said spit-bar 27 and having lugs 48 projecting from said recesses for a purpose to be more fully set forth hereinafter. The latch members 46 include suitable manipulating handles 49 and are pivoted at .5() upon slides 5l fitted to slide vertically in the slots 32 of the uprights 30, suitable stops 52 being. provided for arresting the pivotal movements of said latch members in one direction. The slides themselves may be slidably fixed in said slots by means of plates 53 clamped in place by means of clamp screws 54; as shown in the drawings, the clamp screws 54 may comprise integral parts of the stops 52, it being understood that, normally, the clamp screws 54 serve to maintain the parts of the slides in operative connection without interfering with the sliding movements thereof in the slots 32, but that when the screws are tightened they clamp the slides together' to prevent such sliding movement. If desired, liners of fibre or other suitable material may be located between the slides 51 and the uprights 30 and betweensaid slides and the plates 53. i

In practice, the motor 39, through the men dium of the gearing 40, 41, 43 and 44, serves vto rotatably drive the drum 36 which, in

turn, because of its surface engagement with the spit-bar 27, transmits its motion to the latter and thus causes the lace a to be wound up on said bar 27 and withdrawn from successive tubes 23, the dol'ling machine being easily shifted upon the casters 29: into operative relation with each tube upon the loom. As the doliing proceeds and the diameter of the roll of lace being wound upon the spit-bar 27 increases, thus causing the latter to gradually move away from the Lamaze drum 36, the slides 5l will correspondingly rise in the slots 32; during this operation the ends of the spit-bar 27 are journalled in the recesses 47 of thelatch members 46 and are held thereby againstfdisplacement whereby the roll of lace being doffed is maintained in proper operative relation to said drum 36. When the doliing operation has beenucompl-eted, the clamp screws 54 are tightened, and, the handles 49 are thrown to rotate latch members 46 on their pivots 50, causing the lugs 48 to raise the spit-bar 27 and its roll of lace Z), whereby the lat-ter is lifted away from the drum 36 a suflicient distance to clear the same; in this position of the latch members 46, the recesses 47 are outwardly open, so that the spit-bar 27 may be rolled forwardly on said lugs 48 and easily 'emoved from the machine with the roll of ace Z).

The dofling machine illustrated and de scribed exemplifies mechanical means whereby the operation of doliing the curtains. may be efficiently and successively carried out.

Because of the portability of the dofling machine, it may easily be shifted aboutas required and thus reduces the doiing operation and the transfer of the dolfed lace Isubsequent to the dofiing, `to the simplest operation requiring little manual eort and no' particularly skilled supervision.

Various modifications in the mechanism shown and described may be made within the scope of the claims without departing from the nature of my invention.

I claim:

l. A machine for doiing lace curtains comprising a portable support, a drum journaled thereon, uprights on said support and provided with slots, a spit-bar adapted to be operated by said drum to wind up the lace in the form of a roll, blocks slidably mounted in said slots, latch members pivotally mounted upon said blocks and constituting bearings for said spit-bar, and a motor carried by said support and operatively connected with said drum to actuate the same.

2. finding apparatus for fabrics, co1n prising a frame, a rotatable drum journaled therein, a` pair of slides mounted in said frame, latch members pivoted to said slide, a spit-bar removably journaled in said latch members in a position to be rotated by said drum for winding the fabric in the form of a roll, and means on said latch members whereby the completed roll of fabric may be shifted clear of said drum for removal from the apparatus. f

3. finding apparatus for fabrics, comprising a frame, a rotatable drum journaled the-rein, a pair of slides mounted in said frame, latch members pivoted to said slide and provided with recesses, a spitsbar removably journaled in said recesses and adapted to be rotated by said drum for IUO vll() Winding the fabric in the form of a roll, and lugs forming part of said latch members for exerting a lifting action on said spit-bar whereby the completed roll of fabric is lifted clear of said drum for removal from said apparatus, saidv lugs constituting supports on which the spit-bar with the roll of fabric may be rolled to disconnect said spit-bar from said latch members.

4. finding apparatus for fabrics, comprising a portable frame, a rotatable drum journaled therein, a pair of members slidably mounted in said frame, latch members pivoted to said slidable members and provided With recesses, a spit-bar removably journaled in said recesses and adapted to be rotated by said drum, for Winding the fabric in the form of a roll, lugs'comprising eX- tensions of said latch members adjacentA to said recesses and arranged to exert a lifting action on said spit-bar whereby the roll of fabric is lifted clear of the drum for removal from the apparatus, said lugs constituting supports on which said spit-bar may be rolled out of said recesses to disconnect the roll of fabric from said latch members, means for holdingr said slidable members in fixed position during the removal of said roll of fabric.

In testimony whereof [4 have hereunto rset my hand.

FRANK GILBERT HINSDALE. 

